CMOS tuners for mobile TV

Digital video reception is emerging as the latest feature toward multimedia-enriched handheld devices. Mobile battery-operated devices require small-size tuners that consume low power and are amenable to single-chip integration with the baseband demodulator. Following an overview of the system and c...

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Bibliographic Details
Published in:IEEE communications magazine 2006-12, Vol.44 (12), p.118-125
Main Authors: Vassiliou, Iason, Margaras, Michael, Vavelidis, Kostis, Haralabidis, Nikos, Bouras, Stamatis, Kavadias, Spyros, Kokolakis, Ioannis, Kamoulakos, George, Kyranas, Aristeidis, Kapnistis, Charalampos
Format: Magazinearticle
Language:English
Subjects:
Baseband
Channels
Circuits
Demodulation
Devices
Digital video broadcasting
Dual band
Handheld computers
Integrated circuit measurements
Mobile TV
Synthesizers
Television
Tuned circuits
Tuners
UHF
UHF measurements
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Summary:Digital video reception is emerging as the latest feature toward multimedia-enriched handheld devices. Mobile battery-operated devices require small-size tuners that consume low power and are amenable to single-chip integration with the baseband demodulator. Following an overview of the system and circuit-level implementation challenges of mobile TV standards such as DVB-H and T-DMB, this article presents a dual-band direct conversion tuner for DVB-H. Architecture and circuit trade-offs are discussed, and detailed measurements are presented. The tuner occupies 9.7 mm 2 and achieves a 4 dB NF at both UHF and L-band, eliminating the need for an external LNA. By using a fractional-TV synthesizer both 470-890 MHz and 1.4-1.8 GHz bands are supported, while achieving an integrated phase noise of less than -41 dBc. Sixth-order low-pass filters support channel bandwidths from 4 to 10 MHz
ISSN:0163-6804
1558-1896
DOI:10.1109/MCOM.2006.273108